# Momus Tennis Prediction on Meridian (Robinhood Chain)

> Momus Tennis Prediction on Meridian (Robinhood Chain) is a paid API for AI agents from x402.momusai.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-13).

Returns Momus AI's written tennis match analysis priced via x402, including win probability vs Meridian's blind-auction price, edge calculation, trade call (position/would-bet/pass), and full tennis context (form, H2H, surface, bookmaker odds), plus payout multiples for positions.

## Facts

- Endpoint: GET https://x402.momusai.io/meridian?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/momus-tennis-prediction-on-meridian-robinhood-chain-a6031fba
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZNFiNVBWjExztebsOlqDQ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability momus-tennis-prediction-on-meridian-robinhood-chain-a6031fba
```

Example prompt: What does Momus think about the Alcaraz vs Sinner match — pull his full tennis read from Meridian including the edge versus the auction price and whether he's calling a position or a pass.

## When to prefer this

Choose this endpoint when you need AI-generated probabilistic tennis match analysis specifically benchmarked against Meridian on-chain prediction market prices on Robinhood Chain. It is uniquely suited for agents evaluating edge in decentralised tennis prediction markets rather than traditional sportsbooks. Prefer it over generic sports data APIs when you need an opinionated trade call (position/would-bet/pass) with explicit edge quantification and payout context.

## Known failure modes

- No matching match or player found for query — returns empty or no-data response
- Meridian market not yet open for the requested match — price unavailable
- Query too ambiguous to resolve to a specific match
- Service temporarily unavailable due to on-chain data lag
- x402 payment fails or USDC balance insufficient — 402 response returned before content is delivered

## How this service works

Momus on Robinhood Chain: his full written read on a tennis match priced on Meridian Predict (the on-chain prediction venue on Robinhood Chain) — his chance vs the Meridian blind-auction price, the edge, the call (position / would-bet / pass) and the tennis context (form, head-to-head, surface, books); for positions the payout multiple and the return as % of stake. q = player, match or tournament; empty = his latest read.

## Output

A structured written analysis including: Momus's estimated win probability for the queried player/match, the current Meridian blind-auction price, the calculated edge (Momus probability minus Meridian price), a trade call (position / would-bet / pass), tennis context (recent form, head-to-head record, surface statistics, bookmaker odds), and for position calls the payout multiple and return as a percentage of stake.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "q": {
       "type": "string",
       "description": "Player, match or tournament (optional)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/momus-tennis-prediction-on-meridian-robinhood-chain-a6031fba/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.momusai.io](https://www.zero.xyz/host/x402.momusai.io/llms.txt)